How do I find the property taxes on a house?

It is best to speak with a local real estate professional about your areas tax structure. Many times there is what is call point of sale reassessment. Basically what that means is your taxes are based on the homes purchase price. So even if the current owners are paying low taxes since they owned the home for a very long time -- you will be paying market value base on the purchase price and not benefit the same low taxes. This property tax change can be delayed by a tax year -- so the first year is lower -- following year is based on purchased price.

Yes, with what Julianne said is correct. Many counties in IL will see an increase in taxes, some as high as 17%. Which will certainly make a difference in your mortgage payment. I would be happy to assist more, I am local. Reach out with any questions you may have.